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i <br /> Analytical Laboratory <br /> 2040 East Harding Way,Suite B CER TIFICA TE OF ANAL YSIS <br /> �. Stockton, Ca.95105 <br /> Wednesday,April 14, 1999 <br /> Advanced GeoEnvironmentaf, <br /> 4005 N. Wilson Way <br /> t Stockton, CA. 95205 <br /> s <br /> Sample Information <br /> Sample ID: PE4773-11 Sample Type: Grab <br /> Sample Description: Tank#3-Water Project Name: The Convenience Center <br /> DatelThme Sampled: 3/24/99 3:15:00 PM e Sample Matrix: Ground Water <br /> it <br /> ANALYTICAL RES ULT <br /> [Test Parameter Method DLR Unit Result Dilution <br />` (Pb)( ) 7421 0.01 mg/L 0.06 10 <br /> Lead(Pb TL � EPA <br /> Benzene EPA 8020 0.5 ug/L 4270 100 <br /> -� Toluene EPA 8020 0.5 ug/L 5900 100 <br /> �E�thy—lbenzene EPA 8020 0.5 ug/L �2000 100 <br /> Xylenes,Total EPA 8020 0.5 uglL 9710 100 <br /> LM=ethyl -Butyl Ether(MtBE) EPA8260 1� ug/L 12300 100 � <br /> Dilsopropyl ether(DIPS) EPA8260 1 uglL ND 1 <br /> Ethyl-t-butyl ether(ETRE) EPA8260 1 uglL 650 100 <br /> Tert-amyl methyl ether(TAME)- � � EPA8260 1 uglL - NDS 1 <br /> t-Butanol(TBA) EPA8260 1 ug1L ND 1 <br /> TPH-Gas EPA8260 0.05 mg/L 390 10 <br /> 4-Bromotluorobenzene EPA8260B n %Recovery 104 ��- 1��$� <br /> mg/L=milligrams per Liler=ppm DLR-Detection Limit for the Purpose of Reporting. Exceptional sample matrices or interfereneces may <br /> ug/L=microgrnnrs per Liter=ppb result in higher detection limits <br /> I <br /> C=Composite G=Grab <br /> RESPEC FULLYSUBMITTED, � <br /> Jonathan Hao V.Le, Laboratory Director <br /> f <br /> EPA-Environmental Protection Agency Method. Page 1 of 1 <br /> SM-Standard Method for Examination of Water_Wastewater'18th Ed. <br /> 2040 E. Harding Way, Suite B Stockton, CA. 95205 (209) 462-0892 FAX (209) 462-7935 <br />